Highlights from the bitcoin developer ecosystem
Hi Insiders. This is Tuma, open-source reporter from the Insider Edition. I spent 10+ hours in open-source developer calls in the Bitcoin ecosystem last week. Here is what caught my eye:
PR4297 in rust-lightning is implementing BOLT12 payer proofs.
During the biweekly update, on Monday 30th, LDK contributors discussed updates to various open PRs. In particular, they discussed PR4297 which is proposing a draft implementation for BOLT12 payer proofs.
BOLT12 payer proofs, proposed in PR1295 of the BOLTs specifications repository, are a way to prove that a BOLT12 invoice has been paid by demonstrating possession of the payment preimage, a valid signature over a merkle root, and the payer’s signatures.
The declared goal of the PR is to get early feedback on the design to validate the proposed APIs before the specification is finalized.
v0.16.0 of CDK was released last week, bringing new powerful features to the Cashu implementation.
During the weekly update, on Wednesday 1st, CDK developers discussed the recent release of v0.16.0, which introduces new powerful features. The new version had been published the previous day, on Tuesday 31st.
The new version is now up-to-date with the latest Cashu specifications. In particular, it introduces Pay-To-Blinded Key (P2BK), defined in NUT-28, which adds a layer of privacy over Pay-To-Public-Key (P2PK), it implements batch minting, defined in NUT-29, to mint multiple quotes in one single batched operation.
The release also brings BIP321, a Universal Resource Identifier (URI) scheme for Bitcoin payments, encoding multiple types of Bitcoin payments.
A BIPs Update
There was no newsworthy update in the last days in the BIP repository. We’ll provide new updates as soon as a new BIP gets published or gets assigned a number.
Other News from the Bitcoin World
SHRIMPS: Jonas Nick from Blockstream Research posted to Delving Bitcoin about a new post-quantum signature scheme, SHRIMPS. Built on top of SHRINCS, their latest hash-based signature allows users to load a static seed backup in multiple signing devices to maintain a signature size of around 2.5KB, tackling one of the drawbacks of the previous scheme. Keep an eye out, a deep dive on post-quantum signatures is coming soon!
Bark coming to mainnet: On Sunday 5th, Second announced the release of v0.1.0 of Bark, their implementation of the Ark protocol, dropping the
betatag. According to the company, the launch on mainnet is coming soon.